202122343 has 4 divisors (see below), whose sum is σ = 202207720. Its totient is φ = 202036968.

The previous prime is 202122331. The next prime is 202122391. The reversal of 202122343 is 343221202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202122343 - 2¹⁷ = 201991271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202122343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39033 + ... + 43906.

It is an arithmetic number, because the mean of its divisors is an integer number (50551930).

Almost surely, 2^202122343 is an apocalyptic number.

202122343 is a deficient number, since it is larger than the sum of its proper divisors (85377).

202122343 is an equidigital number, since it uses as much as digits as its factorization.

202122343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85376.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 202122343 is about 14216.9737637797. The cubic root of 202122343 is about 586.8648629090.

Adding to 202122343 its reverse (343221202), we get a palindrome (545343545).

The spelling of 202122343 in words is "two hundred two million, one hundred twenty-two thousand, three hundred forty-three".